TCE Dynamic Projects
(Redirected from Dynamic Ion Exchange Column)
Jump to navigation
Jump to search
Navigation: User Guide ➔ Dynamic Example Projects ➔ TCE Dynamic Projects
PHREEQC Ion Exchange Column Example
Project Location
..\SysCADXXX\ExamplesDynamic\PHREEQC IX Column Example.spf
Available from Build 139.36389.
Features Demonstrated
- The use of PHREEQC Thermodynamic Calculation Engine using a customised database.
- The use of PHREEQC Model Configuration.
- The use of PHREEQC Tank.
- The use of a General Controller.
- The use of Archive Reporter for reporting dynamic data to excel.
Brief Project Description
- This example project presents a dynamic finite element model of a lithium ion exchange column.
- It includes three stages of operation - loading, washing, and elution. All data is obtained from open literature sources, see "References" below.
- Feed solution is fed to the ion exchange column.
- Column operating parameters can be set using a general controller.
- A Class is used to model the operation of the column. This class can be reused for any column.
- The resin bed is modelled as a series of 15 "slices", with each slice being a PHREEQC Tank
- Liquor flows between each slice. Liquid holdup in each slice is determined by the level of the overflow on the slice and the initial charge of resin in the column.
- Resin loss is not considered.
Project Configuration
- Most units with reactions are simulated by the PHREEQC Tank unit model.
- A General Controller is used to control the column.
Included Archiver Report
- Production table including the following outputs:
- Flowrates of feed, wash, eluent, and eluate
- Lithium content (%solids) at each slice of the column
- Production rate of lithium in the discharge
References
- YS Won, H. You, M-G Lee, "Kinetics and Equilibrium Isotherm Studies for the Aqueous Lithium Recovery by Various Type Ion Exchange Resins", Korean J. Mater. Res., Vol 26, No 9, 2016.
- Pitzer.dat database, distributed with PHREEQC
- LLNL.dat database, distributed with PHREEQC